diff --git a/migrations/versions/0309_add_uq_key_row_number.py b/migrations/versions/0309_add_uq_key_row_number.py
index 59ea25c31..3f35d33ac 100644
--- a/migrations/versions/0309_add_uq_key_row_number.py
+++ b/migrations/versions/0309_add_uq_key_row_number.py
@@ -16,4 +16,4 @@ def upgrade():
 
 
 def downgrade():
-    op.drop_constraint('uq_notifications_job_row_number')
+    op.drop_constraint('uq_notifications_job_row_number', 'notifications', type_='unique')